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GitHub: Reopening a merged pull request
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Michael ParkerMichael Parker
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std::vector performance regression when enabling C++11
...your original code, with container.push_back(Item());)
$ g++ -std=c++11 -O3 -flto regr.cpp && perf stat -r 10 ./a.out
Performance counter stats for './a.out' (10 runs):
35.426793 task-clock # 0.986 CPUs utilized ( +- 1.75% )
4 cont...
How can I switch to a tag/branch in hg?
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anatoly techtonik
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answered Feb 25 '10 at 22:34
crazyscotcrazys...
Web Config Transformation to add a child element
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Liam
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answered Jun 14 '12 at 14:53
Jim KeeneyJim K...
“int main (vooid)”? How does that work?
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edited Jul 19 '12 at 18:33
BoltClock♦
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Does BroadcastReceiver.onReceive always run in the UI thread?
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CommonsWareCommonsWare
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How to count items in JSON object using command line?
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372
Just throwing another solution in the mix...
Try jq, a lightweight and flexible command-line ...
How do I set a conditional breakpoint in gdb, when char* x points to a string whose value equals “he
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3 Answers
3
Active
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how do you filter pandas dataframes by multiple columns
...={}
for g in ['male', 'female']:
dic[g]=defaultdict(dict)
for y in [2013, 2014]:
dic[g][y]=df[(df[Gender]==g) & (df[Year]==y)] #store the DataFrames to a dict of dict
EDIT:
A demo for your getDF:
def getDF(dic, gender, year):
return dic[gender][year]
print genDF(dic, 'male', 2014)...